Door and window for carriages.



2 SHEETS-SHEET L.

PATENTED MAY 12, 1903.

FIG.

ND MODEL.

No. 727,978. I PATENTED- MAY 12, 1903.

J. B. LE MAITRE.

DOOR AND WINDOW FOR OARRIAGES.

7 APPLICATION FILED DBO. s, 1902. O

NO MODEL. 2 SHEETS-SHEET 2.

FIG

FIG.-

UNITED STATES "Patented May 12, 1903,

PATENT ()FFICE.

DOOR AND WINDOW FORGAldFilAGES.

SPECIFICATION forming part of Letters iPatent-Nb; 727,978, datedMaylB, 1903.

Application filed December 5, 1902. Serial No. 134,013. (No mbdelJ,

To all whom it may concern:

Be it known that I, JOHN BRACHE LE MAI'IRE, a subject of the King of Great Britain, residing at 45 Grantham road, Sparkbrook, near Birmingham, in the county of Warwick, England, have invented certain new and useful Improvements in Doors and Windows for Carriages and to the Mode and Means for Operating the Same, of which the following is a specification.

My invention has for its object improvements inand relating to railway-carriage and} other windows and to the mode and means for operating the same, by which such windows and sashes can be raised and lowered or fixed in any intermediate position with greater facility.

In order that my invention may be clearly 3 is a plan of the operating mechanism, which is fixed to the upper part of the door. Fig. 4 is a cross-section of the mechanism on the line A B.

The door-frame a with its window I) illustrates such a door and window as are at present used in railway-carriages, and. my inven:

tion is to dispense with the old leather strap for raising and lowering the window, which according to my invention is accomplished by a sliding motion. In Figs. 1, 2 the window I; is raised and lowered by sliding the handle a laterally along the slide-bar d of the plate e, which may be curved, as shown by dotted lines, Fig. 1. 'At the back of the plate a is mounted a pulley-wheelf, over which an endless chain g or its equivalent passes. At the other end of the bar 6 is mounted a sprocketwheel it, also .over which the endless chain g passes. Fast with h on the same spindle are the sprocket-wheele' and the ratchet-wheel j. Over the sprocket-wheel i the endless chain Fig.2is'

or its "equivalent'k passes downward inside the framework of the doorand is secured to the lower end of a spur or bracket Z, which is fastened to the window-frame b by a pin m. The lower portion of the endless chain 7c passes around a small pulley n, hung against the inside of the door. The action of raising and lowering the window b is now very simple,

for as the handle 0', attached by the screw 0 to the endless chain g, as seen at Fig. 1, is moved along the bar d of the plate 2 to the position it occupies in Fig. 2 the window is raised, as seen in the latter figure, and it is lowered by the reverse motion of the handle 0. In order to secure the window in its closed or top position or in any intermediate position, I attach a pawl-lever 1o, which is pivoted at q, the point of the pawl taking into the ratchet-wheel j. The tail of the'pawl is kept in its normal position, as shown at Fig. 2, by the spring, so that the window is automatically locked by the pawl in any position it may happen to be. The Window may of course be raised while the pawl is in the ratchet. If, however, it-is required-to lower the window, the knob or push r is pressed inward, and the nose sis so formed, as shown at Fig. 4, that the tail of the pawl is depressed and the pointlifted free of the ratchetwheelj, thus allowing the window to be lowcred but immediately the pressure is removed from the knob r the pawl falls into .the ratchet and locks the window in any desired position. The slide-bar and pulleys may, if desired, be mounted on wood or other material instead of the metal frame.

I have shown my invention applied only to a railway-carriage door and window; but it is also applicable to hansom-cabs and other vehicles with such doors and windows.

What I claim, then, is

1. The combination with a window, of a suitable frame having a transverse slot, a handle movable in said slot, pulleys adjacent to each end of said slot, an endless chain attached to said handle and running over said pulleys, and another endless chain driven by one of said pulleys and attached to the window.

2. The combination with a window, of a suitable frame having a transverse slot, a

handle movable in said slot, pulleys adjacent to the ends of said slot, an endless chain atpulleys, another endless chain driven by one tached to said handle and running over said of said pulleys and attached to the window, pulleys, another endless chain driven by one a detent-lever for locking said pulleys and I5 of said pulleys and attached to the window, chain, and a push-button having a cam-sur- 5 a ratchet-wheel on the shaft of one of said face for releasing said lever.

pulleys, and a detent-pawl engaging with In witness whereof I have hereunto set my said wheel. hand in presence of two witnesses.

3. The combination with a window, of a suitable frame having a transverse slot, a JOHN BRAOHE LE MAITRE' 1o handle movable in said slot, pulleys adjacent Witnesses:

to the ends of said slot, an endless chain at- HERBERT LINDSLEY, tached to said handle and running over said I HAROLD J. O. FORRESTER. 

